WO2020075400A1 - Système de production d'énergie hybride et procédé de commande de système de production d'énergie hybride - Google Patents

Système de production d'énergie hybride et procédé de commande de système de production d'énergie hybride Download PDF

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Publication number
WO2020075400A1
WO2020075400A1 PCT/JP2019/033261 JP2019033261W WO2020075400A1 WO 2020075400 A1 WO2020075400 A1 WO 2020075400A1 JP 2019033261 W JP2019033261 W JP 2019033261W WO 2020075400 A1 WO2020075400 A1 WO 2020075400A1
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Prior art keywords
power generation
renewable energy
generation device
output
rotary
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PCT/JP2019/033261
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English (en)
Japanese (ja)
Inventor
浩平 坂本
岡崎　純臣
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三菱重工エンジン＆ターボチャージャ株式会社
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Application filed by 三菱重工エンジン＆ターボチャージャ株式会社 filed Critical 三菱重工エンジン＆ターボチャージャ株式会社
Priority to US17/282,625 priority Critical patent/US11876380B2/en
Priority to DE112019004502.4T priority patent/DE112019004502T5/de
Publication of WO2020075400A1 publication Critical patent/WO2020075400A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B6/00—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential
    • G05B6/02—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral or differential electric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/02—Details of the control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/102—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for limiting effects of transients
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/105—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for increasing the stability
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P2101/00—Special adaptation of control arrangements for generators
    • H02P2101/25—Special adaptation of control arrangements for generators for combustion engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Definitions

  • the present disclosure relates to a hybrid power generation system including a renewable energy power generation device and a rotary power generation device connected to a common AC power system, and a control method of the hybrid power generation system.
  • a power generation system including a renewable energy power generation device that generates power by using renewable energy such as solar energy or wind energy is becoming popular. Since the amount of power generation of the renewable energy power generation device depends on the amount of supply of renewable energy, it is affected by external factors such as weather conditions. Therefore, in the renewable energy power generation device, securing the stability of the power generation amount becomes a problem.
  • a rotary power generation device that can be driven by a power source such as an engine is configured to be connected to the same power system as the renewable energy power generation device.
  • a so-called hybrid power generation system is known (Patent Document 1). In this type of hybrid power generation system, when renewable energy fluctuates due to weather conditions or the like, the amount of fluctuation is covered by the rotary power generation device, so that the amount of power generation is stabilized.
  • the rotary power generation device is driven and controlled according to the fluctuation amount of renewable energy, so that the power generation amount is stabilized.
  • the fluctuation amount of the renewable energy exceeds a predetermined value
  • the rotation speed of the rotary power generation device is temporarily decreased due to the load fluctuation, and the output frequency is decreased.
  • Such a phenomenon appears, for example, in the case where a solar panel is used as a renewable energy power generation device, when the weather changes from sunny to cloudy, the amount of sunshine on the solar panel sharply decreases.
  • the decrease in output frequency adversely affects the power system, which is the power supply destination, so it is necessary to disconnect the rotary power generator from the power system, and as a result, it may be impossible to stabilize the amount of power generation. There is.
  • a hybrid power generation system is known that further includes a power storage device that can be connected to a power system in order to avoid such a disconnection of the rotary power generation device.
  • a power storage device that can be connected to a power system in order to avoid such a disconnection of the rotary power generation device.
  • the power storage device a lithium-ion storage battery in which electric power is stored in advance is adopted, but in a large-scale power generation system that supplies infrastructure power, the capacity required for the power storage device is large and very expensive. Become.
  • At least one embodiment of the present invention has been made in view of the above circumstances, and provides a hybrid power generation system capable of realizing output stabilization at a low cost when renewable energy fluctuates, and a control method of the hybrid power generation system.
  • the purpose is to provide.
  • a hybrid power generation system includes: A renewable energy power generation device capable of generating power using renewable energy; A rotary power generation device that is connected to the same AC power system as the renewable energy power generation device and is capable of generating power so as to reduce output fluctuations of the renewable energy power generation device, A control device for controlling the rotary power generation device so that the rotation speed of the rotary power generation device becomes a target rotation speed; A hybrid power generation system comprising: The renewable energy supplied to the renewable energy power generation device, or a variation determination unit that determines whether the amount of variation in the output of the renewable energy power generation device exceeds a predetermined value, A correction value calculation unit that calculates a correction value of the control parameter based on the variation amount, With In the case where the control device determines that the fluctuation amount of the renewable energy supplied to the renewable energy power generation device or the output of the renewable energy power generation device exceeds a predetermined value by the fluctuation determination unit, The rotary power generator is controlled based on a control parameter
  • the correction value of the control parameter of the rotary power generation device is obtained based on the variation amount of the renewable energy or the variation amount of the output of the renewable energy power generation device. This correction value is added as a feedforward component to the control parameter to suppress the reduction in the rotation speed of the rotary power generator.
  • the control device feedback-controls the control parameter based on the difference between the measured rotation speed of the rotary generator and the target rotation speed.
  • the correction value is added as a feedforward component to the control parameter used for feedback control.
  • a storage unit that stores reference data that defines a relationship between the variation amount and the correction value for each operating state of the rotary power generator.
  • An operating state acquisition unit that acquires the operating state of the rotary power generator, Further comprising The correction value calculation unit calculates a correction value of the control parameter based on the variation amount based on the reference data corresponding to the driving state acquired by the driving state acquisition unit.
  • the reference data specified for each operating state of the rotary power generation device is used to calculate the correction value added to the control parameter. Accordingly, the correction value added to the control parameter can be accurately obtained according to the operating state.
  • a power storage device configured to be connectable to the AC power system is provided so as to reduce output fluctuations of the renewable energy power generation device together with the rotary power generation device.
  • the power storage device is configured to be connectable to the AC power system, so that when the renewable energy fluctuates, the output fluctuation of the rotary energy generation device and the renewable energy power generation device is reduced.
  • the correction value is added as a feedforward component to the control parameter of the rotary power generation device as described above, the output is stabilized when the renewable energy fluctuates. Even in the case of including, the capacity can be suppressed to be small (or the power storage device can be omitted). As a result, it is possible to realize a system with low cost and excellent stability.
  • the renewable energy is solar energy.
  • the renewable energy is wind energy.
  • the rotary power generator includes an engine as a power source,
  • the control parameter is a drive amount of an actuator for adjusting the fuel injection amount of the engine.
  • the correction value is added as the feedforward component to the drive amount of the actuator for adjusting the fuel injection amount of the engine that is the power source of the rotary power generator, and thus the system is improved.
  • the output can be stabilized at low cost.
  • a renewable energy power generation device capable of generating power using renewable energy
  • a rotary power generation device that is connected to the same AC power system as the renewable energy power generation device and is capable of generating power so as to reduce output fluctuations of the renewable energy power generation device,
  • a method of controlling a hybrid power generation system comprising: The renewable energy supplied to the renewable energy power generation device, or a variation determination step of determining whether the variation amount of the output of the renewable energy power generation device exceeds a predetermined value, A control step of controlling the rotary power generation device so that the rotation speed of the rotary power generation device becomes a target rotation speed;
  • the renewable power when there is a fluctuation in the renewable energy such that the rotation speed of the rotary power generator decreases, the renewable power that occurs earlier in time than the decrease in the rotation speed of the rotary power generator.
  • the correction value of the control parameter of the rotary power generation device is obtained based on the amount of energy fluctuation or the amount of fluctuation of the output of the renewable energy power generation device.
  • This correction value is added as a feedforward component to the control parameter to suppress the reduction in the rotation speed of the rotary power generator.
  • the present invention it is possible to provide a hybrid power generation system and a hybrid power generation system control method capable of realizing output stabilization at a low cost when renewable energy fluctuates.
  • FIG. 1 is an overall configuration diagram of a hybrid power generation system according to at least one embodiment of the present invention. It is a schematic diagram which shows the detailed structure of the rotary power generator of FIG. 2 is a block configuration diagram functionally showing the internal configuration of the controller of FIG. 1.
  • FIG. 2 is a flow chart which shows the control method of the hybrid power generation system concerning at least one embodiment of the present invention for every process.
  • FIG. 5 is a graph showing the time course of the renewable energy, the output of the renewable energy power generator, the operating state (output) of the rotary power generator, and the output frequency.
  • FIG. 1 is an overall configuration diagram of a hybrid power generation system 100 according to at least one embodiment of the present invention.
  • the hybrid power generation system 100 includes a renewable energy power generation device 300, a rotary power generation device 400, a power storage device 500, and a control device 600, which are connected in parallel to each other with respect to a common AC power system 200.
  • the AC power system 200 is a power system for distributing AC power to demand destinations (not shown).
  • the alternating-current power distributed by the alternating-current power system 200 has a constant frequency (for example, 50 Hz or 60 Hz), and the hybrid power generation system 100 secures a predetermined capacity according to the demand destination.
  • the renewable energy power generation device 300 is a power generation device that can generate power using renewable energy.
  • the renewable energy power generation device 300 is, for example, a solar panel that uses solar energy as renewable energy, or a wind power generation device that uses wind energy as renewable energy, but various other forms. It may be a power generator using the renewable energy of.
  • a solar panel that uses solar energy is assumed as the renewable energy power generation device 300, but unless otherwise specified, other forms of renewable energy are used. It can also be applied to a power generator.
  • the renewable energy power generation device 300 power is generated according to the amount of renewable energy supplied. Therefore, when the supply amount of renewable energy changes depending on the weather conditions, the power generation amount of the renewable energy power generation device 300 also changes. For example, when the weather changes from sunny to cloudy, the amount of solar energy supplied decreases, so the amount of power generated by the renewable energy power generation device 300 also decreases. As described above, the power generation amount of the renewable energy power generation device 300 depends on the supply amount of the renewable energy.
  • a power conditioner 310 is provided on the output side of the renewable energy power generation device 300.
  • the power conditioner 310 is configured to include various power elements such as a DC / DC converter and an AC / DC converter, and the output power from the renewable energy power generation device 300 matches the specifications required by the AC power system 200. Is converted to
  • the renewable energy power generation device 300 includes a renewable energy detection sensor 320 for detecting the amount of supply of renewable energy, and an output detection sensor for detecting the output (power generation amount) of the renewable energy power generation device 300. 330 is provided. Only one of the renewable energy detection sensor 320 and the output detection sensor 330 may be provided.
  • the rotary power generation device 400 has an engine 410 that is a power source and a generator 420 that can be driven by the engine 410.
  • the engine 410 is an internal combustion engine that can generate power by consuming fossil fuel, and is, for example, a diesel engine that can consume light oil fuel and output power.
  • the output shaft of the engine 410 is connected to the generator 420, and power is generated by transmitting the output of the engine 410 to the generator 420.
  • the generator 420 is, for example, a rotary machine having a rotor to which an output shaft of an engine is connected and a stator arranged around the rotor.
  • FIG. 2 is a schematic diagram showing a detailed configuration of the rotary power generator 400 of FIG.
  • the engine 410 which is a power source, is connected to the generator 420 via a flywheel 411.
  • a rotation speed detection sensor 412 is attached to the flywheel 411, and the detection result of the rotation speed detection sensor 412 is input to the governor controller 414.
  • the governor controller 414 controls the actuator opening, which is the drive amount (rack amount) of the governor actuator 416 for adjusting the fuel injection amount supplied from the fuel injection pump 415 of the engine 410, as a control parameter.
  • the governor controller 414 adjusts the rotation speed of the engine 410 (or the generator 420) by feedback-controlling the actuator opening which is a control parameter based on the difference between the target frequency and the detection value of the rotation speed detection sensor 412.
  • the output frequency is controlled to the target frequency.
  • power storage device 500 stores electric power to be supplied to AC power system 200 when the amount of fluctuation in renewable energy exceeds a predetermined value together with rotary power generation device 400 described above.
  • the power storage device 500 is, for example, a lithium ion storage battery, and stores a predetermined amount of electric power.
  • a power conditioner 510 is provided on the output side of the power storage device 500.
  • the power conditioner 510 is configured to include various power elements such as a DC / DC converter and an AC / DC converter. Since DC power is stored in power storage device 500, power conditioner 510 converts the DC power so as to match the specifications required by AC power system 200.
  • the control device 600 includes hardware such as an electronic arithmetic device such as a computer, and a program for implementing the control method of the hybrid power generation system 100 according to at least one embodiment of the present invention is installed in the hardware. By doing so, it is configured as a control unit of the hybrid power generation system 100.
  • the program can be installed, for example, by reading a program recorded in a predetermined recording medium by a reading device included in hardware, and the program and the recording medium recording the program are also within the technical scope of the present invention. included.
  • FIG. 3 is a block configuration diagram functionally showing the internal configuration of the control device 600 of FIG.
  • the control device 600 inputs, to the governor controller 414, a deviation between an actual measurement value of the rotation speed detected by the rotation speed detection sensor 412 provided on the flywheel 411 of the rotary power generation device 400 and the input target rotation speed.
  • a control signal related to the actuator opening which is a control parameter, is output according to the deviation.
  • the governor actuator 416 is driven and the fuel injection pump 415 (see FIG. 2) of the engine 410 is feedback-controlled.
  • the rotation speed of the engine 410 is maintained at the target rotation speed, so that the output frequency of the generator 420 connected to the engine 410 is kept constant.
  • control device 600 includes a renewable energy acquisition unit 610 for acquiring the supply amount of renewable energy to renewable energy power generation device 300, and an output acquisition unit 620 for acquiring the output of renewable energy power generation device 300.
  • the renewable energy acquisition unit 610 acquires the detection value of the renewable energy detection sensor 320 to acquire the supply amount of renewable energy to the renewable energy power generation device 300.
  • the output acquisition unit 620 acquires the output of the renewable energy power generation device 300 by acquiring the detection value of the output detection sensor 330.
  • control device 600 includes both the renewable energy acquisition unit 610 and the output acquisition unit 620.
  • the control unit 600 corresponds to the renewable energy detection sensor 320 or the output detection sensor 330. It suffices to have at least one of the renewable energy acquisition unit 610 and the output acquisition unit 620.
  • the renewable energy acquired by the renewable energy acquisition unit 610 or the output acquired by the output acquisition unit 620 is input to the fluctuation determination unit 630.
  • the fluctuation determination unit 630 monitors a temporal change in the renewable energy or the output, and when the amount of change in a predetermined time exceeds a predetermined value, it is determined that there is a change.
  • the control device 600 calculates the correction value of the control parameter (actuator opening) based on the fluctuation amount. Equipped with.
  • the system is provided with a storage unit 650 for storing various kinds of information prepared in advance (specifications of the engine 410 (displacement amount and rated speed) of the rotary power generator 400, the moment of inertia of the generator 420, etc.). Therefore, the correction value calculation unit 640, together with the information stored in the storage unit 650, is based on the operating state (output) of the rotary power generation device 400 detected by the operating state detecting unit 660, and the correction value for the control parameter. To calculate.
  • the renewable energy acquired by the renewable energy acquisition unit 610 or the fluctuation amount of the output of the renewable energy power generation device 300 acquired by the output acquisition unit 620, the rotary power generation device 400.
  • a map or an arithmetic expression for obtaining the correction value based on the operating state (output) is stored in advance.
  • the correction value calculation unit 640 appropriately reads out the map or the arithmetic expression to output the renewable energy acquired by the renewable energy acquisition unit 610 or the output of the renewable energy power generation device 300 acquired by the output acquisition unit 620.
  • the correction value is calculated based on the fluctuation amount of the above and the operating state (output) of the rotary power generation device 400.
  • the correction value calculated by the correction value calculation unit 640 is added as a feedforward signal to the control parameters on the feedback control loop described above.
  • the correction value is added to the actuator opening which is a control parameter output from the governor controller 414. Then, by inputting the control parameter to which the correction value is added to the governor actuator, the feedforward control by the correction value is performed.
  • the correction value calculated by the correction value calculation unit 640 is added to the control parameter via the attenuation processing unit 670.
  • the correction value is gradually attenuated over the predetermined period after the fluctuation of the renewable energy, so that the feedforward control by the correction value is limitedly performed when the renewable energy changes. Is configured.
  • FIG. 4 is a flowchart showing, for each step, a control method of the hybrid power generation system 100 according to at least one embodiment of the present invention.
  • the variation determination unit 630 monitors the amount of renewable energy supplied to the renewable energy power generation device 300 (step S1) and determines whether or not the renewable energy varies (step S2). Whether or not there is a change is determined based on whether the detection value of the renewable energy detection sensor 320 is continuously acquired in time and whether the amount of change within a predetermined time exceeds a predetermined value.
  • step S2 it may be determined whether or not the output of the renewable energy power generation device 300 varies by monitoring the output of the renewable energy power generation device 300.
  • the presence or absence of fluctuation is determined based on whether or not the detection value of the output detection sensor 330 is continuously acquired in time and the fluctuation amount within a predetermined time exceeds a predetermined value.
  • step S3 If there is a change in the renewable energy (or the output of the renewable energy power generation device 300) (step S2: YES), the correction value calculation unit 640 acquires the amount of the change (step S3).
  • FIG. 5A which will be described later, it is shown that the amount of sunshine has decreased from R1 to R2 at time t1, and the amount of fluctuation is ⁇ R, and in FIG. 5B, reproduction is possible at time t1. It is shown that the output of the energy power generation device 300 decreases from E1 to E2, and the amount of fluctuation thereof is ⁇ E.
  • the operation state detection unit 660 acquires the operation state of the rotary power generation device 400 (step S4).
  • the operating state is, for example, an engine output estimated from the output (power generation amount) of the rotary power generation device 400.
  • the operating state may be acquired by observing boost with a boost sensor.
  • the correction value calculation unit 640 calculates the correction value based on the variation amount ⁇ R (or ⁇ E) acquired in step S3 and the operation state acquired in step S4 (step S5).
  • the relationship between the variation amount ⁇ R (or ⁇ E), the operating state, and the correction value is defined by using a map or an arithmetic expression stored in the storage unit 650 in advance.
  • the correction value calculation unit 640 acquires the map or the arithmetic expression from the storage unit 650, and calculates the correction value corresponding to the variation amount ⁇ R (or ⁇ E) acquired in step S3 and the operation state acquired in step S4.
  • control device 600 maintains the frequency of rotary power generation device 400 at the target frequency by performing feedback control based on the control parameter to which the feedforward component has been added in this way (step S8).
  • FIG. 5 is a graph showing the time course of the renewable energy, the output of the renewable energy power generator, the operating state (output) of the rotary power generator, and the output frequency.
  • FIG. 5 shows a temporal transition of the output frequency of the rotary power generator when the same feedback control is performed using a control parameter in which the correction value is not added as the feedforward component. ).
  • FIG. 5A shows a temporal change in the amount of sunlight (sunlight energy) which is renewable energy, and shows that the amount of sunlight decreases from R1 to R2 at time t1 and the fluctuation amount is ⁇ R.
  • FIG. 5 (b) shows a temporal change in the output of the renewable energy power generation device 300. The output decreases from E1 to E2 at time t1 so as to correspond to the renewable energy shown in FIG. 5 (a). However, it is shown that the variation amount is ⁇ E.
  • FIG. 5 (c) shows the time change of the load of the rotary power generator 400.
  • the fluctuation of the renewable energy see FIG. 5A
  • the fluctuation of the output of the renewable energy power generation device 300 see FIG. 5B
  • FIG. 5C shows that the load of the rotary power generation device 400 increases from L1 to L2 at time t2 which is later than time t1.
  • FIG. 5D shows a temporal change in the output frequency of the rotary power generator 400 according to this embodiment.
  • a correction value that is a feedback component added to the control parameter is indicated by a broken line, and this correction value is at time t1 when the renewable energy or the output of the renewable energy power generation device 300 changes. It is shown that, after increasing to a predetermined value, it gradually decreases by the attenuation processing by the attenuation processing unit 670. By adding such a correction value as a feedback component to the control parameter, the output frequency of the rotary power generation device 400 has good followability with respect to the target frequency.
  • the gain in the feedback control may be temporarily reduced while the feedback component has a valid value (until the feedback component becomes zero due to the attenuation process).
  • the feedforward component added to the control parameter is emphasized. As a result, it is possible to more effectively suppress a decrease in the rotation speed of the rotary power generator.
  • FIG. 5E shows a comparative example according to the related art, but in this comparative example, the correction value is not added as a feedback component to the control parameter. Therefore, in the comparative example, there is an effect that the renewable energy or the output of the renewable energy power generation device 300 fluctuates from the time t2 later than the time t1, and the fluctuation range ⁇ f ′ of the output frequency with respect to the target frequency is large. It also takes a long time to converge to the frequency.
  • FIG. 5D tracking control for the target frequency from time t1 earlier than time t2 is disclosed, the fluctuation width ⁇ f is small, and the convergence to the target frequency is fast.
  • the correction value is calculated based on the fluctuation of the renewable energy or the output of the renewable energy power generation device 300 and is added to the control parameter as the feedforward component.
  • the tracking control to the target frequency can be started at a timing earlier than the time t2 when the output of the rotary power generation device 400 fluctuates, so that excellent response performance is obtained. That is, in the feedback control as in the comparative example, the follow-up control is started after the fluctuation of the renewable energy or the output of the renewable energy power generator 300 affects the output fluctuation of the rotary power generator 400.
  • the stability to the target frequency can be improved by including the feedforward control.
  • the correction value which is the feedforward component added to the control parameter, is calculated based on the fluctuation amount of the renewable energy or the output of the renewable energy power generation device 300 and the operating state of the rotary power generation device 400. It is possible to suppress the fluctuation width ⁇ f of the output frequency with respect to the target frequency and to quickly converge to the target frequency.
  • the control content of the output frequency with respect to the target frequency it is possible to realize the output stabilization when the renewable energy fluctuates at low cost without changing the hardware. it can.
  • the amount of power required for the power storage device 500 provided in the hybrid power generation system 100 can be reduced because the output is stabilized in terms of control. Therefore, the power storage device 500 can be downsized or eliminated. This is advantageous in that the cost for the power storage device 500 employing an expensive lithium-ion battery or the like is significantly reduced.
  • At least one embodiment of the present invention can be used for a hybrid power generation system including a renewable energy power generation device and a rotary power generation device connected to a common AC power system, and a control method for the hybrid power generation system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

La présente invention concerne un système de production d'énergie hybride qui comprend un dispositif de production d'énergie renouvelable et un dispositif de production d'énergie de type rotatif qui sont connectés à un système d'alimentation électrique à courant alternatif commun. Lorsque l'énergie renouvelable ou la puissance ont fluctué, une valeur de correction qui a été calculée sur la base de la quantité de fluctuation est ajoutée à un paramètre de commande en tant que composant prédictif, et le dispositif de production d'énergie de type rotatif est commandé.
PCT/JP2019/033261 2018-10-09 2019-08-26 Système de production d'énergie hybride et procédé de commande de système de production d'énergie hybride WO2020075400A1 (fr)

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US17/282,625 US11876380B2 (en) 2018-10-09 2019-08-26 Hybrid power generation system and control method of hybrid power generation system
DE112019004502.4T DE112019004502T5 (de) 2018-10-09 2019-08-26 Hybrid-Stromerzeugungssystem und Steuerungsverfahren des Hybrid-Stromerzeugungssystems

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JP2018190801A JP7075861B2 (ja) 2018-10-09 2018-10-09 ハイブリッド発電システム、及び、ハイブリッド発電システムの制御方法
JP2018-190801 2018-10-09

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000004541A (ja) * 1998-06-15 2000-01-07 Okinawa Electric Power Co Ltd インバータの制御方法
JP2009174329A (ja) * 2008-01-21 2009-08-06 Univ Of Ryukyus 自然エネルギー発電設備を用いた電力系統周波数制御装置
JP2013161239A (ja) * 2012-02-03 2013-08-19 Tokyo Electric Power Co Inc:The 発電出力変動量推定方法、発電出力変動量推定装置、及び発電出力変動量推定プログラム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04372528A (ja) 1991-06-19 1992-12-25 Shinko Electric Co Ltd ハイブリッド発電装置及びその制御方法
JP5508796B2 (ja) 2009-09-18 2014-06-04 東京瓦斯株式会社 電源システム制御方法及び電源システム制御装置
JP5508798B2 (ja) 2009-09-29 2014-06-04 株式会社日立製作所 クラスタを考慮してレプリケーションを管理する管理方法及びシステム
JP5449532B2 (ja) * 2011-12-06 2014-03-19 三菱重工業株式会社 発電システム
US8823193B1 (en) * 2013-05-28 2014-09-02 Siemens Aktiengesellschaft Method and system for limitation of power output variation in variable generation renewable facilities
WO2015100256A1 (fr) * 2013-12-26 2015-07-02 Pavlovski Alexandre Réseau de distribution d'électricité, système de gestion d'énergie intermittent
US10122308B2 (en) * 2016-08-05 2018-11-06 Cummins Power Generation Ip, Inc. Adaptive control system for a variable speed electrical generator
JP2018078685A (ja) * 2016-11-08 2018-05-17 株式会社日立製作所 電源システム及び電源システムの制御方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000004541A (ja) * 1998-06-15 2000-01-07 Okinawa Electric Power Co Ltd インバータの制御方法
JP2009174329A (ja) * 2008-01-21 2009-08-06 Univ Of Ryukyus 自然エネルギー発電設備を用いた電力系統周波数制御装置
JP2013161239A (ja) * 2012-02-03 2013-08-19 Tokyo Electric Power Co Inc:The 発電出力変動量推定方法、発電出力変動量推定装置、及び発電出力変動量推定プログラム

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US20210344203A1 (en) 2021-11-04
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DE112019004502T5 (de) 2021-06-10
JP7075861B2 (ja) 2022-05-26

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